/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package io.edurt.datacap.parser.tree;

import com.google.common.collect.ImmutableList;
import io.edurt.datacap.parser.ast.AstVisitor;
import io.edurt.datacap.parser.node.Node;

import java.util.List;
import java.util.Objects;
import java.util.Optional;

import static java.util.Objects.requireNonNull;

public class TypeParameter
        extends DataTypeParameter
{
    private final DataType type;

    public TypeParameter(DataType type)
    {
        super(Optional.empty());
        this.type = requireNonNull(type, "value is null");
    }

    public DataType getValue()
    {
        return type;
    }

    @Override
    public String toString()
    {
        return type.toString();
    }

    @Override
    public List<? extends Node> getChildren()
    {
        return ImmutableList.of(type);
    }

    @Override
    public <R, C> R accept(AstVisitor<R, C> visitor, C context)
    {
        return visitor.visitTypeParameter(this, context);
    }

    @Override
    public boolean equals(Object o)
    {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }
        TypeParameter that = (TypeParameter) o;
        return type.equals(that.type);
    }

    @Override
    public int hashCode()
    {
        return Objects.hash(type);
    }

    @Override
    public boolean shallowEquals(Node other)
    {
        return sameClass(this, other);
    }
}
